Ordering Recommendation

Preferred test to follow up presumptive results. For general screening, Carisoprodol Urine with Reflex to Quantitation (2012278) is preferred.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Random urine.

Specimen Preparation

Transfer 2 mL urine to an ARUP Standard Transport Tube. (Min: 0.7 mL)

Storage/Transport Temperature


Unacceptable Conditions

Ambient: 3 weeks; Refrigerated: 3 weeks; Frozen: 3 weeks


Quantitative Liquid Chromatography-Tandem Mass Spectrometry




1-8 days

Reference Interval

Drugs Covered Cutoff Concentrations
Carisoprodol 100 ng/mL
Meprobamate 100 ng/mL

Interpretive Data

Methodology: Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Positive cutoff:
Carisoprodol     100 ng/mL
Meprobamate    100 ng/mL

For medical purposes only; not valid for forensic use.

The presence of metabolite(s) without parent drug is common and may indicate use of parent drug during the prior week.

The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes

80369 (Alt code: G0480)


Component Test Code* Component Chart Name LOINC
2012220 Carisoprodol, Urn, Quant 10979-3
2012221 Meprobamate, Urn, Quant 3755-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • Carisoprodol
  • Carisoprodol and Metabolite
  • Equanil
  • Meprospan
  • Miltown
  • Rela
  • Sodol
  • Soma
  • Soma Compound
  • Soprodol
  • Soridol
  • Urine
  • Vanadom
Carisoprodol and Meprobamate, Urine, Quantitative